Configuring Routing 545
RIP
Routing Information Protocol (RIP) is an Interior Gateway Protocol (IGP) based on the Bellman-Ford
algorithm and targeted at smaller networks (network diameter no greater than 15 hops). The routing
information is propagated in RIP update packets that are sent out both periodically and in the event of a
network topology change. On receipt of a RIP update, depending on whether the specified route exists or
does not exist in the route table, the router may modify, delete or add the route to its route table. Route
preferences are conveyed through a configurable metric that indicates the distance for each destination.
The RIP menu page contains links to web pages that configure and display RIP parameters and data. To
display this page, click Routing
→
RIP in the tree view. Following are the web pages accessible from this
menu page:
• RIP Configuration
• RIP Interface Summary
• RIP Interface Configuration
• RIP Route Redistribution Configuration
• RIP Route Redistribution Summary
RIP Configuration
Use the RIP Configuration
page to enable and configure or disable RIP in Global mode. To display the
page, click Routing
→
RIP
→
Configuration in the tree view.
Table 9-23. IP Helper Statistics Commands
CLI Command Description
show ip helper statistics Displays the number of DHCP and other UDP packets processed and
relayed by the UDP relay agent.
clear ip helper statistics Resets (to 0) the statistics displayed in show ip helper statistics.
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